ISL22326 Datasheet, PDF (6/13 Pages) Intersil Corporation – Dual Digitally Controlled Potentiometers

ISL22326
Operating Specifications Over the recommended operating conditions unless otherwise specified. (Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
TYP
MIN (NOTE 5) MAX
UNIT
t_SU:A A2, A1 and A0 Setup Time
Before START condition
600
ns
t_HD:A A2, A1 and A0 Hold Time
After STOP condition
600
ns
NOTES:
5. Typical values are for T_A = +25°C and 3.3V supply voltage
6. LSB: [V(R_W)₁₂₇ – V(R_W)₀]/127. V(R_W)₁₂₇ and V(R_W)₀ are V(R_W) for the DCP register set to 7F hex and 00 hex respectively. LSB is the
incremental voltage when changing from one tap to an adjacent tap.
7. ZS error = V(RW)₀/LSB.
8. FS error = [V(RW)₁₂₇ – V_CC]/LSB.
9. DNL = [V(RW)_i – V(RW)_i-1]/LSB-1, for i = 1 to 127. i is the DCP register setting.
10. INL = [V(RW)_i – i • LSB – V(RW)₀]/LSB for i = 1 to 127.
11. V_MATCH = [V(RWx)_i – V(RWy)_i]/LSB, for i = 1 to 127, x = 0 to 1 and y = 0 to 1.
12.
TC_V
=
-------^M-----^a----^x----⁽--^V----⁽---^R-----^W------⁾--ⁱ--⁾---–-----^M-----ⁱ--ⁿ----⁽--^V-----⁽--^R-----^W------⁾--ⁱ--⁾------ × ----¹----⁰---⁶----- for i = 16 to 112 decimal, T = -40°C to +125°C. Max( ) is the maximum value of the wiper
[Max(V(RW)_i) + Min(V(RW)_i)] ⁄ 2 165°C _{voltage and Min ( ) is the minimum value of the wiper voltage over the temperature range.}
13. MI = |RW₁₂₇ – RW₀|/127. MI is a minimum increment. RW₁₂₇ and RW₀ are the measured resistances for the DCP register set to 7F hex and
00 hex respectively.
14. Roffset = RW₀/MI, when measuring between RW and RL.
Roffset = RW₁₂₇/MI, when measuring between RW and RH.
15. RDNL = (RW_i – RW_i-1)/MI -1, for i = 16 to 127.
16. RINL = [RW_i – (MI • i) – RW₀]/MI, for i = 16 to 127.
17. R_MATCH = (RW_i,x – RW_i,y)/MI, for i = 1 to 127, x = 0 to 1 and y = 0 to 1.
18.
TC_R
=
----^[---^M-----^a----^x----⁽--^R-----ⁱ--⁾---–-----^M-----ⁱ--ⁿ----⁽--^R-----ⁱ--⁾--^]---- × ----¹----⁰---⁶----- for i = 16 to 112, T = -40°C to +125°C. Max( ) is the maximum value of the resistance and Min ( ) is
[Max(Ri) + Min(Ri)] ⁄ 2 165°C _{the minimum value of the resistance over the temperature range.}
19. This parameter is not 100% tested.
20. t_WC is the time from a valid STOP condition at the end of a Write sequence of I²C serial interface, to the end of the self-timed internal non-
volatile write cycle.
SDA vs SCL Timing
t_F
t_HIGH
t_LOW
t_R
t_sp
t_HD:STO
SCL
t_SU:STA
SDA
(INPUT TIMING)
SDA
(OUTPUT TIMING)
t_SU:DAT
t_HD:STA
t_HD:DAT
t_AA t_DH
t_SU:STO
t_BUF
A0, A1, and A2 Pin Timing
SCL
START
CLK 1
STOP
SDA
A0, A1, OR A2
t_SU:A
t_HD:A
6
FN6176.0
July 17, 2006